Fox News' Judge Andrew Napolitano, a hard-core libertarian, drew the wrath of Donald Trump when he said the president had clearly obstructed justice. Napolitano sat down with Reason's Nick Gillespie to defend his name, lay out his case against the president, explain why Attorney General William Barr has been bad since his days in the George H.W. Bush administration, and put Donald Trump's presidency in a historical and constitutional context.